Outdoor lamp



FIG. 1 is a perspective view of the new design;

FIG. 2 is a front elevational view thereof, the rear elevational view being a mirror image thereof;

FIG. 3 is a right-side elevational view thereof, the left-side elevational view being a mirror image thereof; and,

FIG. 4 is a top plan view thereof. 

The ornamental design for an outdoor lamp, as shown and described. 